Adjustable sit and stand desk



FIG. 1 is a perspective view of an adjustable sit and stand desk showing my new design;

FIG. 2 is a front elevational view of thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings depict part of the adjustable sit and stand desk that form no part of the claimed design. 

CLAIM The ornamental design for an adjustable sit and stand desk, as shown and described. 